I have a Duet also, and I love mine. I did have a problem with my (and I know this is going to sound weird) permenant press always having a smell to it. I couldn't stand it and it was driving me crazy that only these clothes were smelling and I could not figure out what was wrong.
Finally I started leaving my door open and I try to remember to put the washer through the cleaning cycle once a month like it recommends but I know I miss times. Anyway, it has stopped. I don't know why it was ever this way or why it stopped but I no longer have a smell problem with my clothes.
The only thing I could think of was I quit stuffing the washer with clothes and started making two loads out of my permenant press. That's the only thing I ever had a huge amount of and I guess it just wasn't getting them clean since I was stuffing the washer.
It still washes a whole lot more at once than my top loader ever did and it saves tons of water.

I get irritated the the detergent is more expensive, but other than that, I love it.